Desktop application for automatic generation of the Income Accounting Book for individual entrepreneurs of groups 2/3. The program uploads bank statements from 15+ Ukrainian banks (Monobank, PrivatBank, A-Bank, PUMB, Oschadbank, etc.) and the cash register system, automatically calculates taxes, and generates a ready Excel file. Detailed breakdown by months is implemented, supporting both currency and non-currency invoices, as well as batch processing of statements. Stack: Python, pywebview, HTML/CSS/JS, openpyxl, REST API of banks.